Sawing-machine.



H. HAsTINGs.

SAWING MACHINE.

APPLICATION FILED JAN. 9, 1909.

97 075. Patented Ndv. 15, 1910.

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WITNESSES:

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H. HASTINGS. SAWING MACHINE. APPLIUATION FILED JAN. 9, 1909.

Patented Nov. 15, 1910.

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INVENTOR THE NORRIS PETERS ca, WASHINGTON, n. c.

HERBERT HASTINGS, OF ROCHESTER, NEW YORK.

SAWINGr-MACHINE.

Specification of Letters Patent.

Patented Nov. 15, 1910.

Application filed. January 9, 1909. Serial No. 471,524.

To all whom it may concern:

Be it known that I, HERBERT HASTINGS, a citizen of the United States,residing in Rochester, in the county of Monroe and State of New York,have invented certain Improvements in Machines for Sawing Articles suchas Ivory Nuts, of which the following description, in connection withthe accompanying drawings, is a specification, like reference characterson the drawings indicating like parts on the. several figures.

This invention relates particularly to circular saws used in cuttingvegetable ivory nuts into slabs preparatory to the manufac-- ture ofbuttons therefrom. In the methods commonly employed the nut is eitherheld between the operators fingers while being sawed, the thickness ofthe piece being sawed off, depending on his judgment; or the nut is heldagainst a flat gage sensibly parallel with the saw and at a fixeddistance from it which determines the thickness of the piece as measuredfrom a single point at or near the center of its area, resting againstit; or the nut is held against a gage consisting of two edges which areparallel to each other and to the saw and at a fixed distance from itwhich determines the thickness of the piece as measured from two pointsat a fixed distance from the center of its area, resting against it. Thevalue of the pieces thus cut from the nuts is proportional to thediameter of the button or disk and its thickness at the circumferencethat may be turned from them, therefore it is de sirable to gage thethickness of the piece be ing sawed from more than two points andapproximately near the circumference of the disk to be formed therefrom.

My invention as hereinafter described provides means by which this lastdesideratum is accomplished and since three points are necessary andsufficient for determining a plane I preferably show but three gagepoints.

Other advantages of my invention are facility in feeding the nut throughthe saw and less danger of the operators fingers coming in contact withthe saw.

In the preferred form of my invention herein shown Figure 1 represents aplan view of an ivory nut sawing table em-' bodying my invention andshowing the outline of a nut as held against the gage points in theprocess of sawing. Fig. 2

is a right hand side elevation of Fig. 1.

stem 8 has an extended portion 8 threaded to receive the nut s whichscrews tight against the shoulder of s leaving S free to slide back andforth in slot 79 of plate P, but restrains it from motion parallel toits axis. The gage slide S has a hole passing through it and an enlargedrecess which receives the cam plate C the hub c of which extends beyond.9 and is threaded at c to receive a nut 0 which binds C in anypredetermined position within S. The hub 0 is further extended andcarries on its reduced end 0* the knob c which is rigidly held thereto,so that by it the cam plate C may be rotated when the nut c is loosened.In the cam plate C are three spiral cam slots 0 which receive the threeequally spaced gage pins 0 against which the nut rests and whichdetermine the thickness of the piece resting against them while beingsawed off. The extreme left hand end of the gage slide S is recessedsensibly larger than for the cam plate 0 and in this recess is rigidlyheld the gage pin disk D which has three equally spaced radial slots din which the gage pins c are constrained to slide by the cam slots 0when cam C is rotated thus adjusting the gage points away from or towardthe center as desired. In the slide plate P is a second slot 70 throughwhich the binding screw 39 which threads into the saw table, passes andoperates to hold the slide plate and thereby the gage slide in anyposition, within its range, relative to and parallel to the plane of thesaw.

From the foregoing description of my invention it will be understoodthat the operator facing the saw table, as at the lower side of Fig. 1,holds a nut about to be sawed, in the left hand and by pressing itagainst the gage pins 0 these pins determine the diameter of the portionon the right hand side of the saw, in a plane parallel with and inproximity to the saw, and the sawing is accomplished by sliding the gageslide with the right hand thus carrying the nut back into engagementwith the saw while the left hand continues to steady the portion of thenut on the left of the saw.

Having described my invention, what I claim as new, and desire to secureby Letters Patent is- 1. I11 a machine of the class described, thecombination with a saw, a saw table and a gage thereon comprising aplurality of pointed gaging devices projecting toward the plane of thesaw and arranged to engage the side face of the work.

2. In a machine of the class described, the combination with a saw, asaw table, and a gage comprising a plurality of pointed gaging devicesprojecting toward the plane of the saw, and arranged to engage the sideface of the work the points of said devices being in a plane sensiblyparallel to the sawing plane.

3. In a machine of the class described, the combination with a saw, asaw table, a gage comprising a plurality of pointed gaging devicesprojecting toward the plane of the saw, and arranged to engage the sideface of the work and means of varying their distance from the saw.

4. In a machine of the class described, the con'ibination with a saw, asaw table, a gage comprising a plurality of pointed gaging devicesprojecting toward the plane of the saw, and arranged to engage the sideface of the work and means of adjusting these devices relative to eachother.

5. I11 a machine of the class described, the combination with a saw, asaw table, a gage comprising a plurality of pointed gaging devicesprojecting toward the plane of the saw, and arranged to engage the sideface of the work and means of ad usting them relative to each other andin a plane parallel to the saw.

6. In a machine of the class described, the combination with a saw, asaw table, a gage comprising a plurality of pointed gaging devicesprojecting toward the plane of the saw, and arranged to engage the sideface of the work and means of adjusting them relative to each other sothat all the points lie sensibly on a circle, the plane of which isparallel to the saw.

7. In a machine of the class described, the combination with a saw, asaw table, a gage comprising a plurality of pointed gaging devicesprojecting toward the plane of the saw, and arranged to engage the sideface of the work means of adjusting them relative to each other, andmeans of adjusting them relative to the plane of the saw.

8. In a machine of the class described, the combination with a saw, asaw table, a gage comprising a plurality of pointed gaging devicesprojecting toward the plane of the saw, and arranged to engage the sideface of the work and means of adjusting them relative to each other,means of retaining them in positions on the circumference of ajnedetermined circle the plane of which is parallel to the plane of thesaw, and means of varying the distance from the saw.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HERBERT HASTINGS.

Witnesses MILTON Norns, LEONARD I. HALL.

